org.elasticsearch.index.query.NestedQueryBuilder Maven / Gradle / Ivy
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* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.index.query;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.index.query.support.QueryInnerHitBuilder;
import java.io.IOException;
public class NestedQueryBuilder extends BaseQueryBuilder implements BoostableQueryBuilder {
private final QueryBuilder queryBuilder;
private final FilterBuilder filterBuilder;
private final String path;
private String scoreMode;
private float boost = 1.0f;
private String queryName;
private QueryInnerHitBuilder innerHit;
public NestedQueryBuilder(String path, QueryBuilder queryBuilder) {
this.path = path;
this.queryBuilder = queryBuilder;
this.filterBuilder = null;
}
public NestedQueryBuilder(String path, FilterBuilder filterBuilder) {
this.path = path;
this.queryBuilder = null;
this.filterBuilder = filterBuilder;
}
/**
* The score mode.
*/
public NestedQueryBuilder scoreMode(String scoreMode) {
this.scoreMode = scoreMode;
return this;
}
/**
* Sets the boost for this query. Documents matching this query will (in addition to the normal
* weightings) have their score multiplied by the boost provided.
*/
public NestedQueryBuilder boost(float boost) {
this.boost = boost;
return this;
}
/**
* Sets the query name for the filter that can be used when searching for matched_filters per hit.
*/
public NestedQueryBuilder queryName(String queryName) {
this.queryName = queryName;
return this;
}
/**
* Sets inner hit definition in the scope of this nested query and reusing the defined path and query.
*/
public NestedQueryBuilder innerHit(QueryInnerHitBuilder innerHit) {
this.innerHit = innerHit;
return this;
}
@Override
protected void doXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject(NestedQueryParser.NAME);
if (queryBuilder != null) {
builder.field("query");
queryBuilder.toXContent(builder, params);
} else {
builder.field("filter");
filterBuilder.toXContent(builder, params);
}
builder.field("path", path);
if (scoreMode != null) {
builder.field("score_mode", scoreMode);
}
if (boost != 1.0f) {
builder.field("boost", boost);
}
if (queryName != null) {
builder.field("_name", queryName);
}
if (innerHit != null) {
builder.startObject("inner_hits");
builder.value(innerHit);
builder.endObject();
}
builder.endObject();
}
}